USB 2.0 with bogus Data Rate

[Gary Jennejohn]

Bernd Walter writes:
> On Mon, Mar 21, 2005 at 11:42:40PM +0000, Carlos Silva aka|Danger_Man| wrote:
> > Here is the rate:
> > 
> > osiris# dd if=/dev/da0 of=/dev/null bs=64k
> > ^C16+0 records in
> > 16+0 records out
> > 1048576 bytes transferred in 14.741515 secs (71131 bytes/sec)
> > osiris#
> 
> Are you shure that the device is really a high speed one?
> USB 2.0 doesn't explizitly mean this.
> In the list below it looks like the device is handled by an VIA
> uhci controller - that is definitivley full speed only.
> usbdevs -v will show you details about the current detection.
> Moreover VIA controllers are known to cause problems.
> But it's even much too slow for full speed.
> There must be something elese - e.g. an IRQ problem.
> The best choise would be to replace the controller with an NEC based
> one.
> 

Could also be a setting in the BIOS. Mine lets you choose between
USB 1 and USB 2 speeds for the EHCI controller.

I have: ehci0: <VIA VT6202 USB 2.0 controller>

---
Gary Jennejohn / garyj[at]jennejohn.org gj[at]freebsd.org garyj[at]denx.de